Lubricating system.



H. N. LNK.

LUBRIGATING SYSTEM.

APPLICATION FILED FEB. 1,1808.

atented May l1, 1909.

C Ag Dfj.. W 1 w Y 1.! 1| W lli I \m ffafff im ITED sauras retrasa serien HARRY N. LINK, OF-DETROIT,MICHIGAN, ASSIGNORTO UNITED MANUFACTURING COMPANY,

OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

. s LUBRICATI'NG- SYSTEM.

Specification of Letters Patent.

' Patented May 1 1, rece.

Appneauon filed February 1, 190s. serial no. 413,877.

To all whom it may concern:

Be it known that I, HARRY N. LINK, a citizen of the United States of America, residin at Detroit, in the county of Wayne and tateof Michigan, have invented certain new and useful Improvements in Lubricating Systems,l of which the following is a speciiication, referencecbeing had therein. to the accompanying drawings.

The invention relates particularly to a lubricating system for explosion engines '\,whe'rein pressure is em loyed to feed the oil wherein the pressure is taken from t a construction vvhereinA the .to the parts to be lubricated, and it consists inthe construction of lubricating1 means e crank .chamberg'thus reducing not only a positive but a uniform eed, and it further consists of ressure is applied to the lubricant after it as left the res- 2'0.ervoir or cup, thus permitting the oil to be iirst fed by gravity in the ordinary way, and subsequently positively driven independfently of the cup to the several parts to be lubricated. j

The invention still further `consists in the novel meansV for lubricating the crank pin bearing, .and in certain details of, construc- -tion as willy be more fully hereinafter set forth.

, In the drawings,-the iigure is a vertical central section through an explosion engine illustratin my invention. I A The re erenceletter A designates the usual en ine cylinder divided interiorly into the usua exp osion chamber B and crank chamber C.Y` f D represents the iston, E'the connectin rod, F the engine sfiaft, G its crank, and I the crank pin for the connecting rod. Il re resents a crosshead pin mounted in suitab e bearings, as J, y in the piston to which 'the connecting rod-E is connected.,4

The crosshc'ad pin, as shown, is formed with ,a longitudinal passage a, closed at one end,y

and with a plurality of transverse passages', as b. The connecting rod is also formed with a longitudinal pussage'c leading fromv the passage o to the crank pin bearing. The

iston'is provided with' the usual oil grooves andthe walls `of the 4piston chamber and crank chamber are iol-mod respectively with transverse passages e andf.

K indicates the pressure conduit, preferably in the form of a tubo connecting ,the

passages f and e above described, and L is a sight feed lubricator olf any approved type communicating with the pressure conduit at a point near the passage e. The conduit K is with a suitable check-valve M, an(- -the ubricator at a point above the pressure conduit with a checlvvalve C of .any approved t e.

yIn the operation of? the engine, the lubricator is adjusted to feed oil into thc upper part of the pressureconduit by gravity in any desired amounts. Upon the dowustrol. of the piston pressure is developed within the crank casing which passes through the pressure conduit and positively drives or blows such oil as is accumulated within its upper portion from the lubricator into the casing A through the passage e, thus lubricating the piston. 'The check-valve M is designed vto permit pressure through the conduit upon the down stroke of the piston, While the check-valve O in the liixbricator cuts cti' the latter from the pressure conduit, so that the cup or reservoir is not aii'ected except that the feed is temporarily stopped. Upon the upstroke of the piston a vacuum is created in the crank casing, causing the check-valve M to close and the check C to open, and the lubricator feeds oil by gravity into the pressure conduit. When the parts are in position as shown in the drawing, with the passage ay oi' theBcrosshead pin alined with the pressure conduit l, the lubricant driven within said passage, and. aiso through tho transverse passages l), thus lubricating th(` crosshead pin bearings. The

' lubricant is also driven through the longitudinal passage c to-.the crank pin bearing, When-:b5T tho latter 1s constantly and effectively lubricated during the entire run of the' engine.

From the construction set forth, it will be obvious that the lubricating is uniformly effected by reason of the pressure being taken l'ronrtho crank casing, and further that by lubricating in the manner set forth there is no accumulation of oil inthe crank l casing, the distribution' being such as ,tc f

Thus, the

disadvantages following from the accumula? merely suliciontlv oil the parts.

tion olA the oil or from a deposit of oii in the crank casing as in the ordinary spiash'systeni are entirely obvxate'd'.

provided at or near the outlet o onine' j" What I claim as my invention is,-

1. In a lubricating system for explosion engines,` the combination with the engine cylinder and a crank chamber, of a pressure conduit connecting the two, and a lubricantk engines, the combination with the crank cas-' ing, of the' shaft crank and connecting rod therein, an oil supply, and means for forcing the oil to the crank pinbearing by the pressureldeveloped in the crank case, the pressure in said means being .independent of the oil supply.

4. In alubr'icating system for explosion engines, the combination with a cylinder, the piston Working therein, and a crank chamber, of 4a cross head having bearings in the piston, an oil supply, and means for forcing the oil to 'the cross head bearings by the pressure developed inthe crank case, the pressure in siid means being independent of the oil sup* p In an engine having a closed easing, the combination oi' an internal oil distributing pressure system and an external source of oil su ply independent of the pressure periodic- Aahy placed iii communication with said internal system.

6.v In an engine having a closed casing the combination of an external source of oil supply and an internal oil distributing pressure system periodically communicating with said external supply through registering ports in the cylinder and piston, the pressure in said internal system being independent of 20: ply, and an internal oil distributing pressure Said oil supply.

' 7.' In an engine having a closed casing, the

combination of an external source oi oil sup- Qsystem leading into a plurality of movable bearings, and periodically communicating with said external supply through registering ports in the cylinder and piston, the pres- -sure' in said internal system being indepeiident of saidoil supply. l

'8. 'In an engine the combination with a cylinder having a .port therein, the piston,

lcrank and connecting rod, of 'an'oil conduit extending through said piston and comiect,4

source ol' oil supply communicating with said port through an intermediate pressurelsys tem.

9.' In an engine, the combination with the cylinder, the piston, crank and connecting rod, said connecting red having a channel therein, oi' a wrist pin for connecting said connecting rod with said piston and extending transversely through the latter, said wrist pin having an oil channel formed therein communicating with the oil channel in the connecting rod and distributing eil to the bearings at both the upper and lower end of said rod, and an external source of oil supply periodically communicating by means of an intermediate pressure system with said oil channels through a registering port iii the cylinder.

10. In an explosion engine, the combination with a cylinder having a port therein, of a closed crank ease, a conduit communicating with the air space within said crank case' and leading directly to the port in said cylinder, an external oil supply connected with said conduit, and an internal oil distributing system periodically registered with said port in the cylinder and during the interval iii which the air in said crank case is coi1ipressed Wliereby the lubricant is forced by the pressure in said conduit into said internal distributing system, the pressure iii said conduit being independent of said external oil Supply- 11. In an explosion engine, the combination with 'a cylinder having a port therein, o1' a closed crank case, an internal oil dis tributing system leading to the movable bearings within the engine and extending to the periphery 0l' the piston, a conduit coii'- i. municating with the air space within said crank case and leading to the port iii said cylinder arranged to be in registration. with the peripheral opening of said internal distributing system when the piston vis at the limit of its downward stroke, an oil spp'ply connecting with said conduit and independent 'ol' the pressure and check valves in siiid oil supply connection and said conduit, l'or the purpose described.-

In testimony wliereoi I aflix my signature in presence of two witnesses.

HARRY N. LINK.

Witnesses:

`NELLIE KiNsELLA, JAMES P. BARRY. 

